Voltage References

Voltage references are electronic devices that provide a fixed voltage. They provide a constant voltage regardless of external factors like the load on the device or fluctuations in the power supply.


Voltage references have different characteristics depending on their purpose. Voltage references used in laboratory applications are designed to have extremely high precision and accuracy, whereas those used as regulators for computer power supplies are much cheaper but less precise. 


Types of voltage references

There are many different kinds of voltage references, generally categorised by type, tolerance, rated voltage, reference voltage and rated current. The most common tolerances are ±2%, ±1% and ±0.5%, but voltage references are available even up to ±40%. 


What are voltage references used for? 

Voltage references can be used for a variety of different precision measurement and control systems such as power supplies in personal computers and analog-to-digital converters. They are also used in scientific applications and in medical equipment where voltage variations need to be tested regularly. 


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Description Price Nominal Voltage Package Type Reference Type Initial Accuracy Mounting Type Topology Maximum Output Current Maximum Input Voltage Minimum Output Voltage Maximum Output Voltage Pin Count Line Regulation Load Regulation Dimensions
RS庫存編號 178-8832
製造零件編號LM285M-2.5/NOPB
HK$8.135
毎管:95 個
單位
2.5V SOIC Fixed ±1.5 % Surface Mount Shunt 20mA - - - 8 - 10 mV 4.9 x 3.9 x 1.45mm
RS庫存編號 144-9922
製造零件編號LM385BDG4-1-2
HK$6.496
毎管:75 個
單位
1.235V SOIC Fixed ±1.0 % Surface Mount Shunt 20mA - 1.223 V 1.247 V 8 - 20 mV 4.9 x 3.91 x 1.58mm
RS庫存編號 122-0101
製造零件編號TL431BCDR2G
HK$1.333
個 (在毎卷:2500)
單位
2.5 - 36V SOIC Adjustable ±0.4 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 5 x 4 x 1.5mm
RS庫存編號 919-9092
製造零件編號LT1461AIS8-4PBF
HK$73.113
毎管:100 個
單位
4.096V SOIC Fixed ±0.04 % Surface Mount Series 100mA 20 V - 4 V 8 12 ppm/V 40 ppm/V 5.004 x 3.988 x 1.498mm
RS庫存編號 151-3099
製造零件編號LTC6655CHMS8-2.5#PBF
HK$72.777
毎管:50 個
單位
- MSOP Precision 0.05% Surface Mount Series 5mA 13.2 V - 2.5 V 8 40 ppm/V 30 ppm/mA 3 x 3 x 0.86mm
RS庫存編號 471-483
製造零件編號LTC6652AHMS8-5#PBF
HK$68.70
單位
5V MSOP Fixed ±0.05 % Surface Mount Series 5mA 13.2 V - - 8 50 ppm/V 150 ppm/mA 3 x 3 x 0.86mm
RS庫存編號 160-2655
製造零件編號ADR512ARTZ-REEL7
HK$8.203
個 (在毎卷:3000)
單位
1.2V SOT-23 Fixed ±0.3 % Surface Mount Shunt - - 1.1965 V 1.2035 V 3 - - 3.04 x 1.4 x 1.02mm
RS庫存編號 111-1166
製造零件編號REF195GSZ
HK$21.472
毎管:98 個
單位
5V SOIC Fixed ±0.04 % Surface Mount Series 30mA 18 V 4.99 V 5.01 V 8 8 ppm/V 8 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 912-7744
製造零件編號AD586ARZ
HK$77.988
毎管:98 個
單位
5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 4.995 V 5.005 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS庫存編號 759-2067
製造零件編號REF198GSZ-REEL
HK$26.92
單位
4.096V SOIC Fixed ±0.05 % Surface Mount Series 30mA 18 V 4.086 V 4.106 V 8 8 ppm/V 8 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 758-9692
製造零件編號AD588BQ
HK$817.33
單位
±10 V, ±5 V CERDIP Programmable ±0.02 % Through Hole Series 10mA 36 V - 10 V 16 ±200 μV/V ±50 μV/mA 21.34 x 7.87 x 3.56mm
RS庫存編號 161-0118
製造零件編號AD581KH
HK$162.014
個 (以毎盒:100)
單位
10V TO-5 Fixed ±0.1 % Through Hole Series 10mA 40 V - - 3 0.005 %/V 500 μV/mA 9.4 x 9.4 x 4.7mm